In http://www.boost.org/doc/libs/1_47_0/doc/html/thread/thread_management.html


Thread Constructor with arguments

[...]
Note:

Currently up to nine additional arguments a1 to a9 can be specified in addition to the function f.

But in

Launching threads

is clearly stated

"There is an unspecified limit on the number of additional arguments that can be passed."
--
marcello puligheddu
Cagliari ,Sardegna, Italia
+393203090251